Garmin Express is an application that helps you to manage and update your Garmin devices. You can use this app to update the software, register your device, update your maps and create a backup of copies. It allows you to save various maps and preferred locations.
Roku is a device that needs to connect to your TV and it works via an internet connection. It comes with a simple remote that streams your favorite movies, shows, music, and web series to your TV. Also, to add your preferred channels, manage your subscriptions, view your order history, you have to create an account first.